Tube protector



March 21, 1933. P, KlLlMNlK A l 1,902,082

TUBE PROTECTOR Filed Jan. 10, 195o 2 sheets-sheet 1 H" JUNIN/WMU March21, 1933. P. -KILIMNIK TUBE PROTECTOR Jan.

Filed l0, 1930 2 Sheets-Sheet ATTORNEY Patented Mar. 21, 1933 UNITEDSrta Agrar oFFlcE PHILIP`KILIMNK, OF MIDDLE VILLAGE, NEW `YORK TUBEPROTECTOR Application fled. January 10, 1930. Serial No. 419,951.

This invention relates to pneumatic tires in generaland particularly toprotective devices or armor wherewith the air carrying tube is protectedagainst puncture.

5 The broad object of the present invention is to provide an improvedprotective means ential elastic metal strips assembled in suchr a manneras to produce an annular protect ing band partially enclosing thecentral air passage of the tire. y

Another object is to provide` means integral with the outer casing ofa'pneumatic tire for the purpose of making it resistent to puncture.

A further object is to provide a protector or r liner for the casing ofa double tube tire for the purpose -of preventing l the inner tube frombeing punctured.

IA still further object is to provide means for reinforcing a singletube tire to prevent piercing of the tire by foreign objects such asnails or tacks. n

Other objects and advantages of the inventionwill be hereinafterspecificallyv pointiication proceeds.

the invention resides in certain novel constructions and combinationsand Aarrangement of parts, clearly described in the follow- 40 ingspecification and fully illustrated in the accompanying drawings, which'latter showV embodiments of the invention as at'present preferred.

In said drawings: f

Fig. 1 is a transverse section through a vehicle tire of the double tubetype and ilinp;N trates diagrammatically the inode of applin cation ofthe protector or liner.

Fig. 2 is a section similar to Fig. lvillus- 5 trating a modication inwhich thereinforced out, or will becomeapparent, as the speci# ing orarmor is incorporated in the outer tube Y or casing of a double tubetire.

Fig. 8 is a plan view with parts broken away of the. outer surface of avehicle tire embodying theV present invention.

Fig. 4c is a dissected view of aportion of the. fabric support showingthe arrangement of the laterial reinforcing strips.` Y* Fig. 'is atransverse section on the line 5 5 of Fig. 3.

F ig. 6 is a section taken on the line 6 6 of Fig. 4.

F ig. 7 is a skeletonizedview Vshowing the' relative positions of thecircumferential vand lateral metallic reinforcing stripsy Vrespectively,n v

Fig. 8 is a plan View illustrating a modification of the constructionillustrated in Figs. 3 to 7 respectively, the construction having beenmodified toadapt the protector for use in r connection with a balloontire.

Fig. 9 is a section taken on the line 9 of 8.

Fig. 10is a transverse section of a single tube type of tire such as iscommonly used `on 'bicycles and illustrates a modification inconstruction in order to adapt the reinforcing means to a tire of thetype just mentioned.

-The numeral 11, Fig. l, represents the outer tube or casing of a doubletube tire whichVV v is commonly termed'the shoe, while the nu- Ameral 12represents the inner tube `of such a tire.- These elements are of wellknown construction and need not be described more fully herein. Thewhite space between the shoe 11 lVith the above indicated objects inview,

and the inner tube 12 in Fig. l'indicate'sdiagrammatically the positionVoccupied by the protector or liner now to be described. The numerals 13represent 'circumferential metallic reinforcing strips which are sewedwithin circumferential pockets in a fabric structure.

lt will be noted from an inspection of Figs. 3, 5 and 7 that apluralityrof strips 13 are provided andare adapted to'overlapsubstantially. kThe central strip 13 is carried within a'pocket formedby folding and stitching a l fabric structure 14 formed of a materialsuch asv strong canvas while the adjacent strips 13 y are containedwithin pockets formed of a strip of fabric folded` about the reinforcing1GO strips and stitched to the fabric structure 14 by a line of stitcheswhich underlie the next adjacent strip. This construction is veryclearly indicated in Figs. 3 and 5 particularly.

In Fig. 5 the central strip 13 is shown over lapping the line ofstitches by means of which the adjacent pockets containing the strips 13are fastened to the fabric structure 14 while the pockets containing themore remote strips 13 are stitched with a line of stitches underlyingthe free edges ofthe members 13 which are relatively nearer the centralstrip. The central strip 13 may be substantially flat, if desired,however, the more remote strips must be substantially frusto conicalsurfaces in order for them to conform more nearly to the inner surfaceof the shoe. It will be observed that the pocket containing the centralstrip Fig. 5 is formed by folding a wide strip of fabric in the middleand stitching a line of stitches a suiiicient distance from the edge ofthe foldto permit insertion of the reinforcing strip. The pocket thusformedis flattened out substantially before inserting the reinforcingstrip so that when the strip is Ainserted the line of stitches will becentrally placed and underlie the center line of the central strip. Theremaining material of the fabric structure 14 is formed so as to bespread out to adapt itself to the contour of the inner tube of the tireand, as explained before, the

pockets containing the adjacent reinforcing strips are so sewed to thestructure 14 that each line of stitches underlies the edges of thestrips which are relatively nearer the central strip. The entirestructure comprising the fabric sheet surface 14 together with thestrips 13 and their associated pockets comprises the outer protectivesurface. The fabric structure 14 together with its associated strips 13is wide enough to enclose and protect the greater part of the outersurface of Y the tube.

The fabric structure 14 completely overlies a second fabric surface orbase which is composed of a sheet of fabric 15. The base fabric 15 ispreferably composedv of two lav- V ingV strips 13 together with theassembled base The the assembled protector or liner and clearly showsthe relationship between the various layers of fabric. The fabric basecomprising the layers of fabric 15 might be composed of one sheet offabric folded along the middle of its length and stitched with only onestitch before being assembled with the fabric structure 14, or, ifdesired, it may be stitched laterally, the members 16 inserted and thewhole stitched to the fabric structure 14 by means of circumferentialstitches along the edges of the layers 14 and 15.

It may be found desirable to incorporate the protector or liner in atire shoe. In such cases the entire assembled fabric structure includingthe associated reinforcing strips 13 and 16 may be vulcanized as a unitwithin the shoe as indicated diagrammatically in Fig. 2 in which theblank space 18 shows the position occupied by the protector.

InFig. 10 there is shown diagrammatically a protector similar to the onejust described incorporated in a bicycle type of tire 19, the blankspace 2O indicating the position occupied by the protector. When used insuch a tire the protector is vulcanized in the tread as indicated.

FiguresS and 9 illustrate an embodiment of the protector or liner whichis modified for use with balloon type tires. The modification consistsof a circumferential fabric strip 21 to which are sewed lateral pockets22.

Suitable metallic reinforcing strips l23 are carried within the pockets22 and the pockets are so ypositioned on the surfaceof the fabric strip21 that the metallic members overlap each other as indicated in Figure9. The entire fabric strip 21 with the pockets 22 and metallic strips 23may be vulcanized with a rubber sheath so as to form a continuous smoothsurface externally on both sides. A protector or liner so formed isinserted in the shoe in the same manner as the liner or protector firstdescribed herein and illus-- trated in Figure 1, and occupies a positionbetween the inside surfaceof the shoe and the outside surface of theinner tube. The liner when used in connection with a balloon type tirewill, naturally enough, be much wider than a similar liner for anordinary tire owing to the larger volume occupied by such tires.

The overlapping metal strips 13 or 23 form a protective armor which isproof against piercing by a nail or tack such as might be picked up bythe tire shoe, while the lateral strips 16 incorporated in the form ofliner first described give additional protection against punctureparticularly along the sides ofthe tire. The metal strips are preferablyformed of thin sheet steel` which may or may not be tempered as desired.The fabric structures may be composed of any strong fabric CII such ascanvas and assist materially in strengthening the liner or protector asa whole.

The hereinbefore described construction admits of considerablemodification without departing from the invention; therefore, lit is thedesire not to be limited to the precise arrangements shown anddescribed, Which are as aforesaid, by Way of illustration merely. Inother Words, the scope of protection contemplated is to be taken solelyfrom the appended claim, interpreted as broadly as is consistent withthe prior art.

What I claim as new is:

In a motor vehicle tire protector, a fabric member having acircumferential pleat therein to correspond with thecenter line of theVtire and a-y plurality of pockets secured to said fabric member onopposite sides thereof, the adjacent pockets to said central plea-tformed to extend under the said pleat and each pocket overlyinganadjacent pocket away from the said central line of the tire to such anextent that strips of material in the pleat and pock- 1 ets will extendunder the strips of material in the preceding pleat and pockets and willextend substantially'to vthe centers of said.

strips, and strips of substantially impenetrable material in said pleatand pockets, said protector adapted to be positioned in a motor vehicletire between the'inner tube and inner surface of the casing providing` acontinuous protecting element for said inner tube.

In testimony whereof I hereby aliix my signature.

PHILIP KILIMNIK.

